Remove Validation for the User: Name filter

Is there any way to remove, skip or override the validation check on the User: Name filter for views.

I can see where the function is being called in views_handler_filter_user_name.inc and the only way I can think to do it (without hacking the module) is to use hook_form_alter and remove the call to 'views_exposed_form_validate' and thencreate my own validation function, but this may just cause other problems.